MTS FlexTest Models 200 - Manual (Page 325)

Aero Multibox Overview
MTS FlexTest® Models 40/60/100/200 Controller Hardware Aero Multibox Systems 325
D. Click OK.
The Hwi Editor will assign all 8 outputs (6 for the Model 493.79) to the
MUD board located in Transition Slot 19.
4. Repeat this procedure for each D/A and MUD board combination.
The next MUD board in the sequence is located in Transition Slot 18.